Everything is up to date.
It was recognizing my two ATI Radeon HD7950 cards when I was using LuxRender for OpenCL before I swapped them out for these NVIDIA cards.
The Nvidia Maxwell cards aren’t officially supported yet because you need the CUDA 6 SDK to build a kernel for it but Blender only supports ver 5 officially.
But you can still get it to work, look here: http://www.blenderartists.org/forum/showthread.php?327909-Cycles-NVidia-MAXWELL-Benchmarks&p=2603176&viewfull=1#post2603176
there you can get Cuda kernels for your card.
The 770 is not a Maxwell card, it’s an early GK104 Kepler. It should work fine. File a bug report.
Does your operating system recognize the cards in Device Manager?
Are they listed on the Nvidia Conrol Panel?
What do you see under User Preferences->Compute device->CUDA?
Ahh, you are right! For some reason I thought that the 700 series where all Maxwell Chips.
For the sake of completeness, the GF 750 and 750Ti use the GM107 GPU, which is the first publicly available Maxwell chip.
Hi, I cant find any Cuda driver for Win Server, which driver are you using?
Cheers, mib.
I’m having the same problem. I’m running Blender 2.70a on Win7 with a single GTX 770. Worked fine up until this afternoon, when the cuda drop-down in the Blender preferences just disappeared. I have rebooted, reinstalled drivers and reinstalled Blender. Still doesn’t recognize the GPU. I think it might have disappeared when I switched the GPU from “silent mode” to “OC mode” in nvidia’s applet that comes with the GPU. (I’ve heard the app is shit, but I don’t know how to not use it). Windows recognizes the GPU, and games etc run fine. It’s just Blender not recognizing it.
Downloading this https://developer.nvidia.com/cuda-downloads fixed it for me.
EDIT: Okay, so this proved only to be a temporary fix. Problem is back.